Stove-damper.



No. 727,178. Y PATENTED MAY 5, 190s.

w, G. MONTGOMERY.

"STOVE DAMPER.

AIPLIOAITION FILED JAN. 17, 1903.

NO MODEL.

Wit E5 5E5. v Inventor. #WM William fl-fifl iffamary MWZW w "m: scams Pumice" PugTq-umc. WASPIHNGTGIL o. c.

' UNITED STATES Patented. m 5, 1903.

PATENT QFFICE.

WILLIAM G. MONTGOMERY, OF ERIE, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO GEORGE W. REED, OF ERIE, PENNSYLVANIA.

STEVE-DAM PER.

SPECIFICATION forming part of Letters Patent No. 727,178, dated May 5, 1903. Application filed January 17, 1903. Serial No. 139,462. .(No model.)

To a. whom it may concern.-

Be it known that I, WILLIAM GOMERY, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Stove- Dampers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to improvements in stove-dampers; and it consists substantially in the construction of a damper with a detachable spindle adapted to be attached or detached from the damper-plate by means of a longitudinal movement of the spindle.

Another feature of my improved stovedamper is that the plate and spindle are so made that the spindle can be inserted into either end of the slot with equal facility, a spring on the shank of the spindle operating against the exterior of'the pipe to retain the spindle in engagement with the damperplate.

The features of my invention arehereinafter fully set forth and described, and illus' trated in the accompanying drawings, in which- Figure 1 is a View in elevation of a stovedamper embodying my invention. Fig. 2 is a view in elevation of the dam per-plate without the spindle. Fig. 3 is a view in elevation of the spindle. Fig. 4: is a section of my improved stove-damper on the line 00 a; in Fig. 1. Fig. 5 shows a transverse section of pipe with the spindle and damper-plate in position to be placed in engagement with each other.

In the drawings, A is a damper-plate having a transverse semicircular central slot or depression A therein and provided with a draft-openinga and rectangular openings a ct at each side thereof through the slot or depression A and semicircular extensions a of said openings a a at the sides thereof,

as clearly illustrated in Figs. 1 and 2.

B is a cylindrical spindle provided at one end with a thumb-piece G and a collar 0, against which a retracting-spring D operates.

G'. MoNr-' 'On opposite sides of the spindle B, I make lugs or projections 19, ad aptedto pass through the extensions a? at the sides of the openings a when the spring D is compressed and be drawn back under the plate A at the ends of the openings a therein when the spring expands to retain the spindle in place in the slot A, as illustrated by full and dotted lines in Fig. 1, andwhich lugs b I) also operate on the plate A to compel it to rotate with the spindle B.

In connecting the plate A with the spindle B the spindle is inserted through a pipe E. (See Fig. 5.) The plate A is then moved toward it, as illustrated in Fig. 5. The spring D is then compressed, which moves the spindle B longitudinally until the lugs b b on the spindle will pass through the extensions a of the openings a, when';the plate A being moved toward the spindle, the spindle enters the semicircular slot 'Awin the plate Afafter .Which the spring D is allowed to expand and move the lugs b 19 back under the plate, as illustrated in Fig. 4, and thus firmly lock the spindle to the plate,

Having thus described my invention, so as to enable others to construct and use the same, what Iclaim as new, and desire to secure by Letters Patent of the United States,

1. The combination in a stove-damper, of a damper-plate having a semicircular trans- 8 5 verse slot and openings therethrough, a spindle, lugs, on the spindle adapted to pass through the openings-inthe 'plate," an"d"a retracting-spring on the shank'of the-spindle,

substantially as and for the purpose set forth. e 2. The combination in a stove-damper, of a damper-plate having a central transverse slot or depression therein, with openings therethroughiand extension openings at the sides thereof, a round spindle having two 5 lugs thereon at opposite sides thereof adapted to pass through the extensions inthe-openings in the plate, and a retracting-sprin g-on the shank of the spindle, substantially as and for the purpose set forth. x i

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM G. MONTGOMERY. Witnesses:

F. J. BASSETT, GEORGE W. REED. 

